# Input Function Form

### Operators

+, -, *, /, ^, and ** (where both ^ and ** indicate
exponentiation)

### Constants

pi and e

### Functions

sin, cos, tan, sec, cot, csc, arcsin, arccos, arctan, exp, ln, log2, log10,
abs, sqrt, trunc, round, floor, ceiling, and cubert. ("cubert" is the
cube root function.)

### Other Optio

C/Java-style conditional expressions such as
"`x<y? x : y`", which means "if x<y
then x otherwise y"